650065505 has 8 divisors (see below), whose sum is σ = 805242624. Its totient is φ = 503276400.

The previous prime is 650065477. The next prime is 650065561. The reversal of 650065505 is 505560056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 650065505 - 2¹² = 650061409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096831 + ... + 2097140.

It is an arithmetic number, because the mean of its divisors is an integer number (100655328).

Almost surely, 2^650065505 is an apocalyptic number.

It is an amenable number.

650065505 is a deficient number, since it is larger than the sum of its proper divisors (155177119).

650065505 is a wasteful number, since it uses less digits than its factorization.

650065505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194007.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 650065505 is about 25496.3821943428. The cubic root of 650065505 is about 866.2682033340.

The spelling of 650065505 in words is "six hundred fifty million, sixty-five thousand, five hundred five".